Family law
What has to be shown to modify a 50/50 parenting plan after only one year?
Quick answer
Courts do not reopen a custody order just because one parent wants a different arrangement. In most states, the parent asking for a change has to clear a real bar, especially when the order is recent.
Last updated June 2026
The usual starting point: a change in circumstances
Once a parenting plan is entered as a court order, most states treat it as settled unless something meaningful has changed since it was signed. The parent asking for the change generally has to show a significant or material change in circumstances, not just a preference for something different.
Because your order is only about a year old and was negotiated and agreed to by both parents, that bar can be harder to meet. A judge will often want to know what is actually different now compared to when everyone agreed to the plan, rather than simply hearing that one parent has changed their mind.
Best interests of the children drive the decision
Even if a change in circumstances exists, the court's central question is whether a modification serves the children's best interests. Judges look at stability, each parent's ability to meet the children's needs, the existing routine, and how well the current arrangement is actually working.
Evidence that the current plan is working well can cut against a modification. If one parent has publicly described the kids as thriving under the arrangement, that statement may be relevant to whether change is truly needed. Consistency between what a parent says publicly and what they argue in court often matters to how a judge weighs the request.
What older children want can carry weight
Many states allow a court to consider the reasonable preferences of a child who is old enough and mature enough to express them. This does not mean a child gets to decide, and it does not automatically change custody, but a thoughtful, age-appropriate preference from a 13-year-old can be one factor among many.
How a court hears from a child varies widely by location. Some judges will speak with the child privately, some appoint a neutral professional, and some rely on other evidence. It is rarely as simple as a child choosing where to live.
Mediation and repeated requests
Being taken to mediation to revisit an issue, such as who pays travel costs or how time is divided, is common and does not by itself mean the order will change. Mediation is a place to try to reach agreement before a judge gets involved. You are generally free to stand on the existing order if you do not agree to a change.
If the other parent formally asks the court to modify custody, that request typically has to be filed in writing, and you get a chance to respond and present your own evidence. Keeping records of the current schedule, how the children are doing, and any relevant statements can help you show why the existing plan should stay in place.
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This page is general legal information, not legal advice, and does not create an attorney–client relationship. Laws and local rules vary and change. For advice about your situation, consult a licensed family-law attorney in your state.